TY - BOOK T1 - Alternative routes to formal education distance teaching for school equivalency A2 - Perraton, H. D. LA - English PP - Baltimore PB - Published for the World Bank [by] Johns Hopkins University Press YR - 1982 UL - https://ds.mainlib.upd.edu.ph/Record/UP-99796217603246588 OP - 329 CN - LC 45.3 A48 SN - 0801825873 KW - Non-formal education. KW - Correspondence schools and courses. ER -